Provides dimensions, installation styles, part numbers, and specifications for Southco’s Styled Knob Series captive fasteners (1/4‑20 thread).
The guide details the Southco Styled Knob Series captive fasteners, covering three main installation styles—Press‑in, Flare‑in, Floating and Snap‑in—along with panel preparation instructions and required tools. It lists outer panel dimensions, screw projections, and recess options for each thread size.
Material and finish information is provided for the ferrule, knob, spring, screw and washer, and product strength guidelines include pullout force and side‑load limits. Part numbers for each configuration are shown, with notes on finish‑specific numbering changes.
| Thread size | 1/4-20 |
|---|---|
| Pullout force | 360 N (80 lbs.) |
| Side load (unfastened knob) | 200 N (45 lbs.) |
| Knob material | Aluminum, natural or black powder coated |
The series offers Press‑in, Flare‑in, Floating and Snap‑in installation styles.
Installation force should be between 1600 N (350 lbs.) and 2500 N (550 lbs.), depending on thread size.
Change the 8th digit of the part number from “1” to “5”, or “2” to “6”.
The minimum distance is 1.5 × ØD.